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Mount St. Helens Update, October 29, 2004
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The new GPS station on the southern part of the new dome (uplifted glacial ice, rock debris, and new lava) shows continued southward motion about 6 m in the past 36 hours
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Mount St. Helens Update, October 28, 2004
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Crews had a productive day in the field yesterday. Work included installation of two new GPS stations to measure ground deformation on the surface of the growing dome
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Mount St. Helens Update, October 27, 2004
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Samples of the new dacite lava collected on 20 October are mostly similar chemically and texturally to lava erupted during the late period of dome growth in the 1980’s.
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Mount St. Helens Update, October 26, 2004
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slow rise of magma driving uplift of the crater floor and feeding a surface extrusion of lava.
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Mount St. Helens Update, October 25, 2004
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Yesterday field crews were able to make brief geological and thermal-imaging observations and to install an additional GPS receiver.
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Update Archives
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